Improvement in the methods of engraving bank-not plates



a; w. GASILEAR. Methods of Engraving Bank-Note Plates N'O. 138,613. QPatented Ma y6,;;873...

WITNESSES HM, PHOTO ZITHOQRAPHIC C0 NXl: OSBORNE PROCESS UNITED STATESGEORGE W. GASILEAB, OF WASHINGTON, DISTRICT OF COLMBIA.

IMPROVEMENT IN THE METHODS OF ENGRAVING BANK-NOT PLATES.

Specification forming part of Letters Patent No. 138,613, dated May 6,1873; applic 1 ion filed March 29, 1873.

CASE B.

To all whom it may concern:

Be it known that I, GEO. W. UASILEAR, of Washington, in the county ofWashington and District of Columbia, have invented certain new anduseful Improvements in the Method of Engraving Bank-Note Plates; and Ido hereby declare that the following is a full and exact descriptionthereof, reference being had to the accompanying drawing making apart ofthis application.

My present invention relates to an improvement upon a novel method ofengraving titles, names, &;c., on plates for printing bank-notes, asfully described in another application, A, filed simultaneously withthis.

To enable those skilled in the art to more fully understand the same, Iwill proceed to describe the successive steps taken and the resultaccomplished, referring to the accompanying drawing, in which- Figure 1represents a series of alphabets in couplets, engraved upon one or anynumber of plates, by hand, or by means of the alphabetical rolldescribed in application of even date with this. Fig. 2 represents aseries of titles or Words compounded from rolls taken up from the plateor plates represented at Eig. 1. Fig. 3 and Fig. 3 represent the rollswith the duplex alphabets taken up upon their peripheries.

Suffieient is shown at Fig. l to illustrate that twenty-six alphabetsare engraved in couplets-that is, each one is a complete alph abetwithan initial letter, which is prefixed in the order of the letters of thealphabet; for instance, the first alphabet has the initial letter Aprefixed to each one, so that the couplets will be A A, A B, A (J, &c.;the second has the initial letter B, so that its couplets will be B A, BB, B G, &c.; the third has the initial letter C, so that its coupletswill be 0 A, G B, O O, &c., and so on through the twentysixcombinations, These compound alphabets having been taken up on rolls,they are then hardened in theusual way and ready for use in thefollowing manner:

The word Washington, for instance, being that which it is desired toengr Ive upon the final or printing plate, I select t e roll having thealphabet with W as its initi letter; I roll into the plate the couplet WA; l j hen take the the-S is rolled into the plate. T next alphabetselected is that having S as y e initial letter, and the couplet S H sodi cted as thatthe S shall fit its matrix and I H be rolled in, and soon, rolling in one lett at the time,

until the word or a sentence is 5 ished.

The advantage of this metho is the accurate spacing of the letters, anthe opportunity of shading and ruling the in couplets upon the originalor mother ate, so that when taken up on the rolls and i ords formedtherefrom onto the final plate, e process of' etching and ruling doesnot beco e necessary. I am aware that bank-note pl es have been engravedby means of rolls ha ing movable type or letters inserted in theiperipheries; and I am also aware that eng ving-rollers with words,signs, and charac rs produced in relief upon their peripheries,ubstantially in the manner described in my i ention, have been employed;but neither of i ese, in their respective methods of opera-tio produceresults similar to mine, and cons uently such I do not claim; but

What I claim as new, and d ire to secure by Letters Patent, is i Themethod herein described f engraving names and titles upon bank-noplates, &e., by means of a roll or rolls havin a compound alphabetproduced upon its p iphery, and operated substantially in the 1 nnerhereinbefore fully set forth. 1 3

In testimony whereof I have hereunto set my hand and seal this 27th day.f March, A. D. 1873. l

In presence of- WM. 0. MCINTIRE, ARTHUR L. MolINTIRE,

GEO. w. GASIL :l E. a s.]

